path: change posix.join to use array

HBSPS · injunchoi98 · commit 1cc81c7cc44f · 2024-08-14T08:22:17.000-04:00
Change posix.join to use array.join instead of additional assignment. PR-URL: nodejs#54331 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
diff --git a/lib/path.js b/lib/path.js
@@ -1269,20 +1269,20 @@ const posix = {
   join(...args) {
     if (args.length === 0)
       return '.';
-    let joined;
+
+    const path = [];
     for (let i = 0; i < args.length; ++i) {
       const arg = args[i];
       validateString(arg, 'path');
       if (arg.length > 0) {
-        if (joined === undefined)
-          joined = arg;
-        else
-          joined += `/${arg}`;
+        path.push(arg);
       }
     }
-    if (joined === undefined)
+
+    if (path.length === 0)
       return '.';
-    return posix.normalize(joined);
+
+    return posix.normalize(ArrayPrototypeJoin(path, '/'));
   },
 
   /**
